From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Fred Habash <fmhabash@gmail.com>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Guideline To Resolve LWLock:SubtransControlLock
Date: Fri, 17 Aug 2018 15:26:45 -0300
Message-ID: <20180817182645.nmfaw6w7qzqb2dau@alvherre.pgsql> (raw)
In-Reply-To: <CADpeV5y3RqNPeHsafvRcwXxU1MxQzAWBQNv92eKR49XdiWr3pw@mail.gmail.com>
On 2018-Aug-17, Fred Habash wrote:
> Aurora Postgres 9.6.3
Oh, okay, I don't know this one. Did you contact Amazon support?
> So, no chance to recompile (AFAIK).
> Is there a design anti-pattern at the schema or data access level that we
> should look for and correct?
Maybe ...
> And as for the recompile, are you thinking 'NUM_SUBTRANS_BUFFERS'?
Yes, that's one option, but there's also TOTAL_MAX_CACHED_SUBXIDS.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-performance@postgresql.org
Cc: alvherre@2ndquadrant.com, fmhabash@gmail.com, pgsql-performance@lists.postgresql.org
Subject: Re: Guideline To Resolve LWLock:SubtransControlLock
In-Reply-To: <20180817182645.nmfaw6w7qzqb2dau@alvherre.pgsql>
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